abnormal vs sicko

abnormal

noun
  • A person or object that is not normal. 

adj
  • Of or pertaining to that which is irregular, in particular, behaviour that deviates from norms of social propriety or accepted standards of mental health. 

  • Not conforming to rule or system; deviating from the usual or normal type. 

sicko

noun
  • A person with unpleasant tastes, views or habits. 

  • A physically ill person. 

  • A mentally ill person. 

adj
  • Characterized by depraved tastes or habits; deviant. 

How often have the words abnormal and sicko occurred in a corpus of books? (source: Google Ngram Viewer )